Electrical transmission device



May 31, 1927. 1,630,900

A. MICHOUD ELECTRICAL TRANSMISSION DEVICE l K Filed Aug. 26. 1922 Patented May 31;, 1927.

rsas'rarss ARNOLD MICI-IOUZD, OF-YVERDON, swI'rzEnLANnrAssIenoR TO THE FIRM: GIBLES I AUTOMATIQUES MICHOUD-SOCIETE ANONYME,; F NEUGHATEL, SWITZERLAND;

I ELECTRICAL TRANSMISSION- DEVICE.

Application filed August 26, 1922, Serial No. 584,472, and in switzerlandSeptember 7, 1921. I

This invention has for'its object an'electric transmission device which permits oi". the transmission at a distance of several separate electrical orders, with the use of a restricted number of conductors. This de vice comprises a series of interrupters, arranged 0n the cascade principle andoperated separately by a corresponding series of electromagnets which-control them, so as to transmit to'a commonreceiver a number of impulses which differ according to the position'which the interrupter actuated occupies in the cascade;

' The accompanying drawing represents partially, by wayof example, a construc- Q tional form of the subject matter of the invention applied to the control of the firing indicator of an automatic target of the type described in the specification of U. S.-Patent No. 1,406,674. I

Figure 1 is'a diagram of the electric con nections of the part of the installation represented. I

Figure 2 is an elevation of this part and ,25 V Figure 3 is a section:

Figure 2.

In targets of this type it has generally been necessary hitherto,'in order to electrically connect the target to the firing indicator arranged nearthe target, a number of conductors equal in number to the number of the positions which the indicator can oc-' cupy plus one, whereas, with the transmission device according to the present invention it suflices to have one pair of'c'onductors' for the same order of movements of the index. Thus in the present caseof the application of the example partially represented of the apparatus according'to this invention 40 to atarget with four concentric divisions 1 (called target A) subdivided intofour quadrants, three conductors are required, namely one for the radial movements of the index,

one for the angular movements of the same conductors Were'necessary. I

In the example shown B and G indicate two main conductors'connected a.

on the line 3 -3 of and one for the return where heretoforell of current X (not shown but indicated diagrammaticall in Figure 1) and four inter-v rupters A A A actuated as will be hereinafter described so as each to form a. circuit passing through a conductor a, 0, g a or a and an electromagnet b 6 5 ,0! 6

in order to excite one of these magnets. The magnet thus excited attracts an armature c 0 c or 0 carried by a flexible metallic tongue o o 0 or c the free end of which then, acts on the oscillating contact d d d or d of a pendulum'interrupter D D D or D so as to'close momentarily a circuit passing through the other contact 0Z 03 d? or 03 of the pendulum interrupter, a conductor 6 e 6 or 6 a conductor F the electromagnet G indicated diagrammatically in Figure 1,v controlling the index of the indicator, as will be hereinafter described, a conductor F the main conductor C andthe'source of current X.

As soon as the interrupter is actuated and either contact d 03 d or d has touched the corresponding contact 03 d,- a or 03 1 it drops back under the action of its own weight and transmits, by means of a stud d animpulse to an oscillating contact 72?, h or 76 k of a pendulum interrupter H H or H? sufficient to close this interrupter. The fixed contact 72, of the interrupter H is connected by a conductor 2' to a conductor 0 the fixed contact h o f the interrupter 8d H by a conductor i to the conductor a and so on. v i The working of these four elements thus arranged in cascade fashion is as follows:

NVhen the interrupter A is closed the electromagnet G only receives'oneimpulse because the element I is not connected-to the other similar elements, whereas when the interrupter A A or Atrespectively is closed the electromagnet G receives respectively two, three or four impulses, because 7 ;the element II is connected to the element]:

by the closing of the interrupter H and so on. Any number or" elements may of course be arranged is the same way.

i Inthe if the application of the til-ans mission device according to this invention to an automatic target A of the type described in Patent No. 1,406,674, the movements of the index of the firing indicator are con- 7 trolled by two electromagnets G, each respectively connected to. a series of four elements as shown. One of these electromagnets controls the four radial movements of the index, corresponding to the three concentric. annular divisions of the target and to the central circular division, while the other electrom'agnet controls the four angulair movements thereof ateo toe'ach 'other I corresponding to the other four quadrants Thus every time a bullet hits the target an interrupter A A A or A ot the series represented and simultaneously an interrupter A ofthe other serie'swill be closed so as to transmit to the two electromagne'ts G thedesired number of impulses determining the movement of the index simultaneously in two directions necessaryfor bringing it on to the. indicator, placed near the person firing, in a position corresponding to that of the point struck on the target. 1

This application to a target is given by way of example only, and 'it must be thoroughly understood that this device may be applied to any other long distance electric transmission in which it may be of advantage to reduce to a'strict minimum the numberof conductors necessary. 1

The pendulum interrupt-ers may naturally be replaced by other interrupters.

"I claim:

'1. An electrical apparatus for sendinga' variable number ofimpulses over an impulse circuit, comprising a series of electro-magnets, means including a' contact device associated with each electro-mafgnet for momentary energiz ationof each electromagnet to cause an impulse to besent over the impulse circuit and also including a second contact device associated with each of the aforesaidcontact devices except that associated with the first magnet in the-series .to cause the momentary energization of the. next adjacent electro-magnet of the series,

and means for selectively causing the momentary energization of any magnet of the series whereby the numbero-f impulses imparted to the impulse circuit depends upon the particular magnet in the series selected for energization by the last aforesaid means. 2. An electrical apparatus for sending a variable number of impulses over an impulse. circuit, comprising a series of electro-magnets each including an armature, means in eluding a contact device associated with the armature of each electromagnet to momentarily energize the samea'nd'to thereby cause an impulse to be sent over the impulse circuit and also including a second contact device associated with the said contactdevice in e'ach magnet'ex'ceptthe first magnet of the series to momentarily energize the next 'el'ectro mag net of the series, and means for selectively causing the momentaryenergiza.

tion "of each magnet of the series whereby the number of impulses imparted-to the impulse circuit depends upon the particular magnet in'the series selected for energization by the last aforesaid means.

3. An electrical apparatus for sending a variable number of impulses over animpulse circuit, comprising a series of electro-magnets each having an armature, a swinging contact device associated with the armature of each electro-magnet for momentarily en ergizing-the same and causing an impulse to be sent over the impulse circuit, a device associated with't-he said swinging contact device of eachelectro-magnet exceptthe first magnet in the series for momentarily energizing the next adjacent electro-magnet of the series, and means for selectively caus-' ing the momentary energiZatiOnofany magnet of the ser es whereby the number of 1mpulses imparted to the impulse circuit de-I pends upon the particular electro-magnet in the series selected for-the energization by the last aforesaid means.

4:.'AI1 electrical apparatus for sending a variable number of impulses over an impulse.

circuit, comprising a series of electro-magnets each including. an armature, a. swinging contact device associated with the armature of each electro-magnet for momentarily energizing the same to-cause an impulse to be sent over the impulse circuit, a second'swinging contact device associated witlreach' of the aforesaid contact devices of each of the elect'ro-magnets' withthe exception of the first electr'o-magnet in the series for momentarilyen-ergizing thenext adj acentelectromagnetj of the series, and means for selectively causing the momentary energization of each:electro-magnet-of the series whereby the number of impulses imparted to the impulse circuit will depend. upon the par- I ticular elect-ro-magnct in the series selected for energization by the said means: v

5. Anelec'trical apparatus forsending a variable number of impulses over an impulse circuit, comprising-a seriesof electro-magnets each including an armature, a swinging contact device associated'with the armature I of: each electro-niagnet for momentarily energizing the same to cause an impulse to be sent over the impulse circuit, a second swinging contact device associated with each of the aforesaid contact devices of each of the electro-magnets with the exception of the first eiectro-Inagnet in the series for momentarily energizing the next adjacent electromagnet of the series, and a series of switches each adapted to close a circuit to a corresponding electro-magnet whereby the number of impulses imparted to the said impulse circuit depends upon the particular electro-magn-et in the series selected for energization by any of the said switches.

In testimony whereof I have affixed my signature.

ARNOLD MICHOUD. 

